OpenGD77

Hi everyone, I just recently dug out my Retevis RT90 after taking it out of the truck when I had an unplanned medical disability retirement back in August. Figured kind of pointless to keep a radio in a truck that sits for days a a time and gets driven only a few minutes every other day, I used to h...

Hi Daniel, Figured it out. After the Flash, I kept starting the radio back up in Bootloader Mode. Once I read your note about just restart the radio, now I've been able to load the contact list and working on Keplerian Data upload. Very aggravating with this laptop, had issues with it and just about...

Running OPENGD77 CPS E2022.02.23.01 I have 3 USB devices listed under the HID Also have 2 USB devices under USB in the device manager. Radio did take the flash, but won't recognize any com ports or USB for the radio. Radio is in bootloader mode, screen black, green led on. Tried both USB ports and s...

The radio is connected to the laptop via the cable and it is not being seen by the computer software. So I can not flash anything, the radio is seen as an HID but there is no communications between the software and the radio.

That's part.of the problem, I can't find the com port to upload the firmware, even in the factory CPS.

Hi, I'm having the same issue with a brand new GD77,Software Ver 4.03.08 only running Windows 10 on a HP laptop with the Intel i5 processor. I can download the CPS from Radioddity and the OpenGD77, but can not find the GD77 in the device manager. I also can not find any COM port for the GD77, have t...

Hi everyone. I have a Radioddity GD-77 on order to use for Satellite communications, I ordered one after talking with a fellow ham who told.me all about how he was able to program his for working satellites and more. I've been in the hobby since 1994, first licensed as N1RWC and in 2007 upgraded to ...